PRODUCT NEWS
innovation beats weeds Weed-It has announced a new set of features for its latest Quadro system, all designed to make weed control easier and more accurate
Above: Updates to the WeedIt Quadro system allow greater accuracy when cornering and changing speed, so growers have flexibility, control and efficiency
T
he technology update includes what the company says is a world first: the introduction of stepless nozzle control that ensures the chemical application rate is constant and on target, irrespective of speed. When turning, it works to adjust the flow and timing across the boom, to hit the target weed with a constant application rate. There is also added capability for full coverage spraying plus a turn compensation speed limit warning system. “Trusting that your chemical application is accurate and effective is fundamental to any spray operation,” Australian managing director Brendan Williams says. “These improvements mean greater accuracy when cornering and changing speed, so growers have flexibility, control and efficiency. “This is especially important when using residual herbicides as they stay active in the soil for a long time, so they need to be applied at the right rate.” Weed-It Quadro’s pulse width modulation system (PWM) has
been designed to ensure the application rate is maintained and on target regardless of speed changes, even when turning. The flow rate to an individual nozzle is controlled by varying the PWM signal going to each solenoid. Utilising Weed-It’s PWM feature, the latest software release allows operators to use the Quadro for both spot spraying, to target all weeds on fallow ground, as well as for full coverage in-crop spraying. Applicators can accurately apply blanket crop protection chemicals with speed and turn compensation. Another advantage is that the PWM nozzle control allows precise application at any rate without having to swap or turn nozzle bodies manually, saving time and increasing both sprayer and treatment efficiency, says Weed-It. Each individual Weed-It Quadro sensor knows its position on the spray boom and the speed of each sensor and corresponding nozzle can be calculated exactly. In a fast turn or with very wide spray booms, it may be that an outer sensor is travelling too fast, making the flow is beyond reach – the nozzle is 100 per cent open, but the flow is too low to maintain correct application rate. If this occurs, a warning will show and sound on the terminal, so the operator can respond by decreasing driving speed. This ensures the application is always successfully sprayed on target. The new software release, version V4.12 for terminals and version V3.42 for sensors, is now standard on new Weed-It Quadro systems, and can be retrofitted to terminals with version V4.10 and higher and Quadro sensors with software version V3.40 and higher.
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19/11/2020 9:54:44 AM
